Instant Pot Peanut Butter Lava Cake
If you’re a fan of decadent desserts that come together in a flash, you’re in for a treat with this Instant Pot Peanut Butter Lava Cake. Imagine a luscious, gooey center filled with creamy peanut butter, surrounded by rich chocolate cake—this dessert is the epitome of indulgence. Not only is it surprisingly easy to make, but it’s also a showstopper that will impress your friends and family. Let’s dive into the details of this delightful recipe!
Why Cooks Rave About It

The Instant Pot has revolutionized the way we cook, and for good reason. This Instant Pot Peanut Butter Lava Cake delivers a rich, molten chocolate experience in a fraction of the time it would take to bake in a traditional oven. The pressure cooking method ensures that the cake remains moist while creating that irresistible lava-like center. It’s perfect for celebrations, a cozy night in, or simply when you need a little pick-me-up. Plus, with just a few simple ingredients, you’ll be able to whip this up any time the craving strikes!
What We’re Using
To create this heavenly dessert, you’ll need a few key ingredients. Here’s what you’ll be gathering:
- 1/2 cup unsalted butter, cut into cubes – plus more for greasing the ramekins
- 1 cup chocolate chips (dark or semi-sweet)
- 1/2 cup powdered sugar – plus more for topping
- 2 large eggs (room temperature)
- 2 egg yolks (room temperature)
- 1 teaspoon pure vanilla extract
- 1/4 cup unsweetened cocoa powder
- 1/4 teaspoon espresso powder
- 1/4 cup all-purpose flour
- 1/2 teaspoon kosher salt
- 4 tablespoons creamy peanut butter (divided)
- 1 cup water (for the pot)
Gear Checklist
Before we get started, make sure you have the following items ready:
- Instant Pot
- Ramekins (4-6 depending on size)
- Mixing bowls
- Whisk or electric mixer
- Spatula
- Measuring cups and spoons
Mastering Instant Pot Peanut Butter Lava Cake: How-To

Let’s break down the process into simple steps so you can master this Instant Pot Peanut Butter Lava Cake effortlessly.
Step 1: Prepare the Ramekins
Start by greasing your ramekins with a little butter to prevent the cakes from sticking. You can use 1 teaspoon of butter for each ramekin. Set them aside.
Step 2: Melt the Chocolate and Butter
In a heatproof bowl, combine the chocolate chips and cubed butter. Microwave in 30-second intervals, stirring in between, until melted and smooth. Alternatively, you can melt them over a double boiler on the stove. Once melted, let it cool slightly.
Step 3: Whisk Together the Wet Ingredients
In another bowl, whisk together the powdered sugar, eggs, and egg yolks until well combined. Add in the melted chocolate mixture and vanilla extract. Whisk until smooth.
Step 4: Combine Dry Ingredients
In a separate bowl, sift together the cocoa powder, espresso powder, flour, and salt. Gradually fold the dry ingredients into the wet mixture using a spatula until just combined.
Step 5: Add Peanut Butter
Now comes the fun part! Divide the batter evenly among the prepared ramekins, filling each about halfway. Then, add 1 tablespoon of creamy peanut butter into the center of each ramekin and cover it with more batter. Leave some space at the top for the cakes to rise during cooking.
Step 6: Arrange in the Instant Pot
Pour 1 cup of water into the Instant Pot. Place a trivet in the pot and arrange the ramekins on top of it. Secure the lid and set the pressure valve to sealing.
Step 7: Cook
Select the “Manual” setting and adjust the timer to cook for 10 minutes on high pressure. Once the cooking time is up, perform a quick release to release the pressure.
Step 8: Let Them Rest
Carefully remove the ramekins from the pot using tongs or an oven mitt. Let them cool for a few minutes before serving. This allows the lava center to set just slightly without losing that ooey-gooey goodness.
Step 9: Serve and Enjoy
To serve, run a knife around the edge of each cake to loosen it from the ramekin. Invert onto a plate and dust with extra powdered sugar for a beautiful presentation. Dive in and experience the molten peanut butter center!
Low-Carb/Keto Alternatives

If you’re looking for a low-carb or keto-friendly version of the Instant Pot Peanut Butter Lava Cake, consider these alternatives:
- Use almond flour instead of all-purpose flour.
- Substitute powdered erythritol for powdered sugar.
- Opt for sugar-free chocolate chips.
- Replace creamy peanut butter with natural, no-sugar-added varieties.
Notes on Ingredients
- For the best texture, use high-quality chocolate chips.
- Room temperature eggs will help the batter mix evenly.
- Espresso powder intensifies the chocolate flavor but can be omitted if you prefer.
- Make sure to use unsweetened cocoa powder for the best results.
Prep Ahead & Store
If you want to prepare ahead of time, you can make the batter and store it in the refrigerator for up to 24 hours before cooking. Just remember to allow it to come to room temperature before placing it in the Instant Pot.
To store leftovers, cover the ramekins with plastic wrap or transfer the cakes to an airtight container. They can be kept in the refrigerator for up to 3 days. Reheat in the microwave for a few seconds before serving to restore that molten center.
Frequently Asked Questions
Can I use a different type of nut butter?
Absolutely! Feel free to substitute with almond butter, cashew butter, or any other nut butter you prefer.
Can I double the recipe?
Yes, you can double the recipe, but you will need to cook them in batches depending on the size of your Instant Pot. Make sure not to overcrowd the pot.
What can I serve with the lava cake?
This cake pairs beautifully with a scoop of vanilla ice cream or a drizzle of chocolate sauce to elevate the dessert experience.
Why did my lava cake not turn out gooey?
If your lava cake isn’t gooey, it might have been overcooked. Make sure to stick to the cooking time and allow it to rest after cooking for the best results.
If you’re inspired to create more delicious treats, check out these recipes:
Final Thoughts
This Instant Pot Peanut Butter Lava Cake is a delightful treat that blends the richness of chocolate with the creamy goodness of peanut butter. It’s an easy dessert that will satisfy any sweet tooth and impress anyone you serve it to. Whether you’re enjoying it on a special occasion or simply treating yourself to a mid-week indulgence, this recipe is sure to become a favorite in your home. So, gather your ingredients, fire up that Instant Pot, and get ready for a dessert experience that’s as simple as it is delicious!

Instant Pot Peanut Butter Lava Cake
Ingredients
Equipment
Method
- Start by greasing your ramekins with a little butter to prevent the cakes from sticking. You can use 1 teaspoon of butter for each ramekin. Set them aside.
- In a heatproof bowl, combine the chocolate chips and cubed butter. Microwave in 30-second intervals, stirring in between, until melted and smooth. Alternatively, you can melt them over a double boiler on the stove. Once melted, let it cool slightly.
- In another bowl, whisk together the powdered sugar, eggs, and egg yolks until well combined. Add in the melted chocolate mixture and vanilla extract. Whisk until smooth.
- In a separate bowl, sift together the cocoa powder, espresso powder, flour, and salt. Gradually fold the dry ingredients into the wet mixture using a spatula until just combined.
- Divide the batter evenly among the prepared ramekins, filling each about halfway. Then, add 1 tablespoon of creamy peanut butter into the center of each ramekin and cover it with more batter. Leave some space at the top for the cakes to rise during cooking.
- Pour 1 cup of water into the Instant Pot. Place a trivet in the pot and arrange the ramekins on top of it. Secure the lid and set the pressure valve to sealing.
- Select the “Manual” setting and adjust the timer to cook for 10 minutes on high pressure. Once the cooking time is up, perform a quick release to release the pressure.
- Carefully remove the ramekins from the pot using tongs or an oven mitt. Let them cool for a few minutes before serving. This allows the lava center to set just slightly without losing that ooey-gooey goodness.
- To serve, run a knife around the edge of each cake to loosen it from the ramekin. Invert onto a plate and dust with extra powdered sugar for a beautiful presentation. Dive in and experience the molten peanut butter center!
Notes
- For the best texture, use high-quality chocolate chips.
- Room temperature eggs will help the batter mix evenly.
- Espresso powder intensifies the chocolate flavor but can be omitted if you prefer.
