Prep: Preheat oven to 375°F. Grease and line a 9-inch round cake pan (I like to use a springform pan so it releases easily) with parchment paper and spritz with baking spray. Set aside.
Mix dry ingredients: In a medium bowl, whisk together: flour, baking powder, baking soda, and salt. Set aside.
1¾ cups all-purpose flour, 1½ tsp. baking powder, 1/2 tsp. baking soda, 3/4 tsp. kosher salt
Infuse the sugar: In a large bowl of a stand mixer, combine the sugar and lemon zest. Rub together with your fingers until fragrant to release the oils.
Zest from 2 lemons, 1¼ cups granulated sugar
Mix wet ingredients: Add the paddle attachment to the stand mixer. Add eggs to the lemon sugar. Beat for ~2-3 minutes on high until slightly thickened and pale in color. Start Timer
3 large eggs
Slowly add the olive oil: With the mixer on low, slowly drizzle in the olive oil. Then, still on low, add in the milk, lemon juice, and vanilla extract. Turn off the mixer.
1 cup extra-virgin olive oil, 3 Tbsp. fresh lemon juice, 1 tsp. vanilla extract, 1/4 cup whole milk
Add ricotta: Add in the ricotta (make sure to beat the ricotta before adding it in. It needs to be smooth and creamy, and at room temperature to prevent chunks of it in the cake). Whisk in until smooth.
10 oz whole milk ricotta
Fold in dry ingredients: Fold in the dry ingredients, careful not to overmix. The batter might look a little lumpy but it's okay. Overall, its a smooth-ish batter, with no large clumps of ricotta and no visible flour pockets. You can give it a whisk to incorporate but once again just be careful not to overmix.
Pour into pan: Pour batter into prepared pan, smoothing out the top, and sprinkling the tops with 1-2 Tbsp. of granulated sugar.
1-2 Tbsp. granulated sugar
Bake: Bake for ~45-50 minutes Start Timer, tenting with foil towards the end if the top is browning too much. A toothpick inserted in the center should come out clean (a few moist crumbs are ok, you just don’t want it goopy).
Cool: Cool in the pan for ~30 minutes and then carefully release from the pan and place on serving plate or a cooling rack. Start Timer
Ricotta topping: Using the stand mixer or a hand mixer, all the ingredients together until thick, smooth, and creamy, ~3-4 minutes Start Timer. Taste and adjust as desired. Place in the fridge until ready to serve.
16 oz whole milk ricotta, 1/2 cup powdered sugar, 1 Tbsp. heavy cream, 1-2 tsp. vanilla bean paste, Pinch of salt
Serve: Slice cake, serve with a big dollop of the ricotta cream on top with more olive oil and lemon zest. This cake gets even better on day 2!!