Follow these simple steps to create your strawberry cake:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Combine Dry Ingredients: In a large mixing bowl, whisk together the flour, baking powder, baking soda, and salt.
3. Cream Butter and Sugar: In another bowl, beat the softened butter and granulated sugar until light and fluffy.
4. Add Eggs: Mix in the eggs one at a time, ensuring they are well combined.
5. Add Milk and Vanilla: Pour in the milk and vanilla extract into the butter mixture, mixing until fully incorporated.
6. Incorporate Strawberry Puree: Gently fold in the pureed and strained strawberries, ensuring an even distribution.
7. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, stirring until just combined.
8. Divide Batter: Pour the batter evenly into the prepared cake pans.
9. Bake: Place the pans into the preheated oven and bake for 30-35 minutes. The cakes should spring back when lightly touched.
10. Cool the Cakes: After baking, allow the cakes to cool in the pans for 15-20 minutes before transferring them to wire racks to cool completely.
11. Frost and Garnish: Once the cakes are completely cooled, frost with your choice of whipped cream or frosting, and top with diced strawberries for a beautiful finish.

These steps guide you in creating your amazing strawberry cake, perfect for any gathering or celebration!