Preheat the oven to 325˚F.
Spray with nonstick spray or line with parchment paper a 9-inch by 13-inch baking pan.
Place 2 cups of flour into a medium bowl.
Add 2 teaspoons baking powder, 1 teaspoon salt, and 1/2 teaspoon baking soda.
Sift the ingredients together.
Set aside the flour mixture.
Place 1 ¾ cups sugar into a large bowl.
Add 2 tablespoons minced basil.
Massage basil leaves into sugar using fingertips.
Add 4 eggs and whisk until well combined.
Add 2/3 cup olive oil, 1/2 cup milk, 1/2 cup sour cream, and 1 tablespoon vanilla extract.
Whisk until smooth.
Add the flour mixture and fold together until no white streaks remain.
Fold in diced strawberries until incorporated.
Pour batter into the prepared baking pan.
Bake for 45 – 50 minutes or until a cake tester inserted in the center comes out clean.
Set aside the strawberry cake to cool completely.