Preheat oven to 350°F. Spray a 9x13 baking pan with cooking spray. Set aside.
In the bowl of a stand mixer, fitted with a paddle attachment, (or a large mixing bowl and an electric mixer), beat sugar and eggs for 5 minutes with a mixer on medium. The volume of mixture will increase by almost half and will be thickened and light in color.
Add butter and extracts and beat for 2 more minutes. Slowly add flour and beat until just combined. Fold in blueberries.
Using a spatula, pour and smooth batter into prepared pan. Sprinkle almonds on top.
Bake for 40-45 minutes until a toothpick comes out clean.
Allow to cool completely before serving, or the cake will crack. If you can't wait, just know it will taste amazing!
Video
Notes
Use a serrated knife to cut the cake.Cake freezes beautifully. Wrap individual pieces in plastic wrap and then place in a resealable freezer bag. Remove as desired. Allow thawing for 10-15 minutes on the counter before eating. The cake will keep for up to 6 months.