Makes one 9″ cake

Ingredients:

• 1 cup (226 grams) unsalted butter, at room temperature
• 1/2 cup sugar
• 1 tablespoon vanilla extract
• 1 egg
• 1 egg yolk
• 1 1/4 cups (150 grams) cake flour
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup crème fraîche (or full-fat Greek yogurt)
• 3/4 cup freeze-dried corn
• 1/2 cup almond flour
• 1 tablespoon cake flour
• 6 tablespoons melted butter
• 1/4 teaspoon salt 

Preparation:

• Preheat your oven to oven to 350°F. Grease a 9″ round cake pan and line it with parchment.
• Cream together butter and sugar until light and fluffy (at least 3 minutes in a stand mixer).
• Add the vanilla, egg, and egg yolk, and beat until well-combined.
• Add the flour, baking powder, baking soda, salt, and creme fraiche and mix until the batter just comes together.
• Pour the batter into the prepared pan.
• In a food processor, pulse together all the streusel ingredients until crumbly but not too fine. Spread the streusel evenly over the cake batter.
• Bake for 20-30 minutes: Remove from the oven once a tester inserted into the center comes out clean.