Mexican Buns

Ok, some of you know it and others might have guessed, but I'm one of those insanely busy people who rarely sits down for a proper breakfast, certainly not on the week days. That's why in my fridge, you'll see breakfast buns like this in a plastic container, waiting to be heated up in the morning.
If you're someone who sits at the table and has a relaxed breakfast, I do envy you. And you might picture your breakfast stuffs more like this. However you're imagining they might fit into your life, these breakfast stuffs are just delicious.

Ingredients :
600 gr purpose flour
120 gr sugar
15 gr dry yeast
1 tsp bread improver
4 eggs yolk
250 ml iced water
100 gr butter
1/2 tsp salt

Filling :
cubed frozen butter

Topping :
1 large egg
40 gr fine sugar
40 gr palm suiker
100 gr salted butter
1 tsp instant coffee, add a tbsp hot water
1 tsp mocha paste

Instruction :

· In the mixing bowl of an electric mixer, stir together flour, sugar, yeast & bread improver.

· Gradualy add egg yolks & iced water. Mix & stir together with dry ingredients on low speed with a dough hook. Then add butter & salt, mix thoroughly until smooth. It will bubble almost immediately.

· Place dough in an oiled bowl, and turn to coat the surface. Cover with a damp cloth. Let rise in a warm spot for 30 minutes, or until doubled in size.

· Punch down the dough. Weigh dough into 50 grams per piece. Fill with cubed frozen butter. Shape rounds, and place in greased pans. Let rise until dough is 2.5 inches, usually 1 hour. Then spread with topping.

· Bake at 350 degrees F ( 175 degrees C) for 20 minutes, or until tops are browned. Let warm in pans for 5 minutes, and then turn out onto plate. Now it's ready to enjoy with a cup of tea.