How to make
Dissolve the yeast into 1/2 cup warm water, sweetened with 1/2 tbsp of sugar. Sprinkle a pinch of flour and allow it to activate.
Sift the flour and salt into a bowl. Make a hole in the middle and pour in the activated yeast, olive oil and remaining water. Knead a soft dough.
Place the dough into a greased bowl, cover with a cloth and let it rise for 1 hour. Cut the dough into 3 pieces, and make 3 baguettes.
Allow the baguettes to rise for 40 minutes. Make a few vertical slashes with a knife on each baguette and arrange them on a baking sheet.
You can grate some parmesan cheese on top, if you wish. Bake in a preheated oven to 430°F (220 degrees) for about 20 minutes. Place a small bowl with water in the oven, as well.
Once they have cooled, cut each baguette into 3-4 pieces and slice each piece open. Spread the butter and arrange the sliced tomatoes and mozzarella.
Grill the sandwiches on the upper heat element, until the cheese melts. Garnish with pesto if you wish.
Enjoy!