From the Cook
From the Cook
From the Cook
From the Cook
From the Cook
From the Cook
1/9
Make the Batter and Assemble the Cake
1
Preheat the oven to 350°F.
2
Grease an 8×8 square cake pan with butter and line it with parchment, leaving an overhang of parchment on a couple sides to help lift the cake out later.
3
Mix the dry ingredients in a bowl (flour, baking soda, baking powder, salt, cinnamon) and set aside.
4
Add the melted butter and brown sugar to another large bowl and mix for about a minute using a whisk or handheld electric beater. Mix in the yogurt and peanut butter, then the mashed bananas, eggs, and vanilla and mix thoroughly.
5
Add the dry ingredients and mix them with the wet until combined. Be careful not to overmix or the cake will become gummy.
6
Pour half of the cake batter into the prepared square pan. Spread the jam into a layer on top of the cake batter, then top the jam with the rest of the cake batter and even it out. *Tip: if your jam is too thick to spread, you can warm it slightly in a pot or microwave to thin it out.*
Make the Crumble and Top the Cake
1
Mix flour, brown sugar, salt, cinnamon, and chopped peanuts together. Mix in the melted butter and the peanut butter. The texture should be crumbly and not too dry or too wet, and it should stick together when you squeeze it in your hands, kind of like stiff cookie dough. Sprinkle the crumble over the top of the cake until it’s in an even layer.
Bake and Serve the Cake
1
Bake the cake for 60 minutes or until the internal temperature reaches 200°F. If the crumble is getting too dark, cover the cake with nonstick foil.
2
Cut into squares and enjoy.
My Calorie Intake
Review & Earn
Be the first to review this recipe and earn a 20% Bonus
Level up & unlock free Premium by reviewing recipes!
My Notes
Your kitchen notebook is waiting.
Whether it's a recipe tweak or an inspiration burst — jot it down here.
Tips & Tricks (5)
- Room Temperature Ingredients for Perfect Moisture 🌡️Allow eggs, Greek yogurt, and peanut butter to reach room temperature before mixing to ensure proper emulsification and a tender, moist crumb throughout the cake.
- Toast Your Peanuts for Deep Flavor 🥜Lightly toast the peanuts for the crumble in a 325°F oven for 8-10 minutes before crushing to intensify their nutty flavor and create better textural contrast.
- Jam Layer Strategy to Prevent Sogginess 🍓Spread jam only on the bottom cake layer and allow the first layer to cool completely before stacking to prevent the jam from seeping into the crumb and making it dense.
- Balance Acidity with Greek Yogurt 🥛Use Greek yogurt instead of sour cream and reduce it slightly—its tang complements peanut butter while adding moisture without making the cake heavy or greasy.
- Brown Sugar Hydration for Extra Moisture 🍌Pack your brown sugar firmly when measuring to ensure adequate moisture is incorporated into the batter, which combined with the bananas creates exceptional cake tenderness.
Recipe Facts
Diet at a Glance
Vegetarian
My Calorie Intake
Smart Nutrition 
Nutrition Per Serving
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Glycemic Analysis
Glycemic Index
Glycemic Load
More Recipes by Cooking with Conks
Check out more Cooking with Conks content!Browse Cooking with Conks recipes!
No Recipes Available
EXPLORE
Looking for more?
Use our smart searchtool, explore by category, or browse your customized food feed.