Combine flour, sugar, yeast, salt, eggs, baking powder, and water in a bowl.

Adjust water to create a slightly runny batter.

Let the batter sit on the counter for 3 hours to thicken.

Finely chop the chocolate.

Finely chop the peanuts.

Spray a nonstick skillet or griddle with cooking spray.

Cook the batter pancake-style, flipping once, to make 2 martabak.

Butter the top of each cooked martabak.

Pour a generous amount of sweetened condensed milk over the buttered top.

Sprinkle with chopped chocolate and peanuts.

Fold each martabak in half like a taco.

Cut into strips and serve warm.