500g of corn flour
1 teaspoon of baking powder
1 flat teaspoon of salt
1 tablespoon of lard (room temperature)
700ml sparkling mineral water
Combine flour, baking powder, salt, add sparkling water and stir in lard. Mix with spatula until well combined.
Pour prepared mixture into baking pan 25cm diameter covered with parchment paper. Bake in pre-heated oven at 250 degrees for 50 minutes.