Warm the milk until it's lukewarm. Add the dry yeast and sugar, and let the mixture sit for 10 minutes to activate the yeast.
160 g milk, ½ tsp dry yeast, 1 tsp sugar
Melt the butter and let it cool down. Put the milk with yeast and sugar into a stand mixer along with the melted butter, salt, and all purpose flour. Knead the dough well until it's smooth and elastic. This will take around 15 minutes.
30 g butter, ½ tsp salt, 300 g all purpose flour
Divide the dough into 4 equal pieces.
Roll out each piece of dough into an oval shape, about ½ cm thick.
Place the bread on a baking sheet and let them rise in a warm place for 2 hours or until they have doubled in size.
Preheat the oven to 175 degrees Celsius (347 degrees Fahrenheit) using top and bottom heat.
Bake the breads for 18-20 minutes at 175 degrees Celsius (347 degrees Fahrenheit), then let them cool completely on a wire rack.
Now your homemade panini bread is ready to be used for delicious Italian paninis.