Preheat oven to 320 degrees.
In a large bowl or a cake mixer cream together butter, sugar, vanilla extract, lemon zest and lemon juice.
1 Cup Butter,, 1 Cup Granulated Sugar, 1 Tbs Vanilla Extract, 2 Lemons,, 1 Lemon,
Once that is creamed together, add eggs one at a time. Once that is mixed in fully, add ricotta and continue to mix until no lumps appear.
4 Eggs, 1 Cup Ricotta Cheese (Full Fat)
In a separate bowl mix together flour, almond flour, baking powder, and salt. Add the dry ingredients to the wet mixture. Mix until dry ingredients are incorporated but do not over mix.
2 Cups All Purpose Flour, 1/2 Cup Almond Flour, 4 Tsp Baking Powder, 1/4 Tsp Salt
In an another bowl mix together blueberries and cornstarch until all the blueberries are coated with the cornstarch. Fold the blueberries into the batter gently.
2 Cups Blueberries, 2 Tbs Cornstarch
Line a loaf pan or bundt pan with cooking spray so it the cake does not stick. Add the batter in.
Bake at 320 degrees for 60-80 minutes. Mine took 1 hour and I used a bundt cake pan. The cake is done when a toothpick comes out clean from the middle.