Preheat the oven to 325°F or 163°C. Lightly grease two 8 inch cake pans and line the bottom with parchment paper. Then butter the parchment paper and sides of the pans. (Refer Note 4)
In a medium mixing bowl, sieve together all purpose flour/ cake flour, baking soda, baking powder and salt. Set this dry ingredients aside.
In another bowl, add melted or softened butter and sugar. Beat on high until the sugar incorporated well with butter. Once it is smooth whisk in eggs (room temperature), adding one at a time. Then whisk in curd or plain yogurt and vanilla extract.
Gradually add half of the dry ingredients into the wet ingredients and whisk on medium speed. Once it is incorporated into the batter, pour half of the milk and beat until well combined. Then whisk in the rest of the dry ingredients alternately adding milk.
Add half cup of strawberry reduction/ sauce into the cake batter and whisk on low speed. (Refer Note 5)
Using a rubber spatula scrap the sides of the mixing bowl and fold the batter gently. Add few drops of red food color and fold till mixed.
Pour the cake batter evenly in to the prepared cake pans. Tap the pans to release air bubbles and smooth the top using a rubber spatula.
Bake the cake @ 325°F/163°C for 30 to 35 minutes or until a toothpick comes out clean or with a few crumbs on it.
Let the cakes cool for 10 minutes. Scrap the sides of the pan using a knife and flip the cakes from the pan to a wire rack. Allow the cake to cool completely before assembling.