01 -
In a medium bowl, whisk the egg. Using a spatula, incorporate the almond flour, sugar, almond extract, and melted butter until well combined. Refrigerate until needed.
02 -
Position a rack in the center of the oven and preheat to 180°C (350°F). Grease and flour a 23×13-cm (9×5-inch) loaf pan and set aside.
03 -
Melt butter in a saucepan over medium heat. The butter will foam and crackle as it melts. Once the crackling subsides, the butter will begin to brown. Swirl the pan occasionally. When the butter turns golden brown and emits a nutty aroma, remove from heat and transfer to a small bowl to prevent burning. Allow to cool.
04 -
In a large bowl, whisk together flour, sugar, baking soda, salt, and cinnamon until evenly distributed.
05 -
In a medium bowl, whisk eggs, vanilla extract, and yogurt until smooth. Incorporate the mashed bananas. Once the browned butter has cooled, whisk it into the mixture.
06 -
Add all wet ingredients to the dry ingredients. Fold together gently, ensuring to scrape the bottom of the bowl to incorporate any hidden pockets of flour. Mix until just combined, being careful not to overmix.
07 -
Spoon half of the batter into the prepared pan. Spread half of the almond filling over the batter. Top with remaining batter, spreading evenly. Finish with the remaining almond filling and garnish with slivered almonds. Bake for 50-60 minutes, or until a skewer inserted into the center comes out clean.
08 -
Remove from the oven and let rest in the pan for 15 minutes. Dust with powdered sugar, then remove from pan and allow to cool completely before slicing.