Preheat oven to 350°F. Grease a 9-inch round cake pan and set aside.
Whisk the butter, sugar, and oil together.
¾ cup unsalted butter, 1⅓ cups granulated sugar, 2 tablespoons vegetable oil
Add in the vanilla and almond extracts and eggs. Whisk to combine.
1½ teaspoons pure vanilla extract, 1 teaspoon almond extract, 4 large eggs
In a separate bowl, whisk together the all-purpose flour, almond flour, baking powder, and salt.
1½ cups all-purpose flour, ¼ cup almond flour, 1 teaspoon baking powder, ½ teaspoon kosher salt
Add the dry ingredients to the wet ingredients and mix with a spatula until just combined.
Transfer the batter to the prepared cake pan.
Top with sliced almonds.
⅓ cup sliced almonds
Bake for 25-30 minutes, or until a toothpick inserted comes out clean.
Allow the cake to cool on a rack.
Top the cake with more sliced almonds and a dusting of powdered sugar if desired.
Powdered sugar