1/2 cup butter
1/4 cup sugar
1 cup flour
Pinch of sea salt
Combine all ingredients until crumbly (pulse in food processor for a few seconds).
Press dough into greased baking pan.
Poke a few holes in the bottom with a fork.
Bake at 350 degrees Fahrenheit for 15-18 minutes.
Remove from oven and allow to cool while you prepare the filling.
1 1/2 cups sugar
1 tablespoon citrus zest
1/2 cup squeezed citrus juice
1/2 cup flour
Icing sugar for dusting on top
Whisk together all ingredients until just combined.
Pour into the prepared baking pan with crust.
Bake at 350 degrees Fahrenheit for 30-35 minutes, until set.
Remove from oven and dust with icing sugar.