Prep: Preheat oven to 350℉ Line a 9 inch springform pan with parchment paper and set aside.Add 1 tablespoon of flour to the blueberries and toss until they're all coated, set aside. Mix Dry Ingredients: Combine flour, salt and baking powder and whisk until combined.
1½ cups (180g) All Purpose Flour , 1¼ tsp Baking powder, ½ tsp Salt
Infuse the Sugar: In a large bowl, combine the sugar and the lemon zest, and using your fingers, rub them together. This helps bring out the oils in the zest, which yields more flavor.
1 cups (200g) granulated sugar, zest of 2 large lemons
Cream: Add the softened butter to the infused sugar and cream using a stand mixer or handheld mixer, for about 3 minutes until completely smooth.
¼ cup (56g) unsalted butter, softened
Combine Wet Ingredients: To the sugar/butter, add one egg at a time, making sure to mix well between addition. Then drizzle in the oil and continue mixing. Add the lemon juice and sour cream and mix until all is incorporated.
2 large eggs + 1 egg yolk, ¼ cup Neutral oil, ¼ cup lemon juice, ½ cup (130g) sour cream
Add the Dry Ingredients: To the wet batter, add the dry ingredients and mix until all is incorporated. Don't over mix. Fold in the blueberries using a spatula.
1 cup Frozen blueberries (do not thaw)
Pour & Bake: Pour into the prepared pan and bake for 40-45 minutes until a toothpick comes out clean.
Let the cake cool completely before frosting.