The things you need
2 cup flour
1 tsp baking soda
1/2 tsp salt ( if you are using unsalted butter)
1 cup butter( in room tem)
1 egg( in room temp too)
1 tsp vanilla essence
1/4 – 1/2 orange or lemon zest( optional)
1 cup sugar
1/2- 3-4 cup strawberry jam
Mix butter & sugar
Add egg mix well then add zest & vanilla essence
Whisk flour+baking soda+ salt add this mixture to the butter mix
Line a square baking pan, add 3/4 of this mix to the pan and spread it with your hand or spoon evenly.
Then pour the jam over this and spread it.
Then rest of the mix put it on the top of the jam as shown in the pic below.
Bake this in a 375 degree F preheated oven for 25-30 mts until it’s done. Take out from the oven. Allow completely cool & cut it into slices & enjoy.