(adapted from Joy of Cooking)
2 tbsp warm water (about 11o F)
1 tsp active dry yeast
1/2 cup milk
1 tbsp butter
1 tbsp sugar
1 1/2 tsp salt
2-3 cup bread flour
about 1/4 cup pesto
Dissolve the yeast in the water and set aside.
Heat the milk, butter, sugar, and salt in a small saucepan, until it's about 105 degrees.
Pour the yeast and the milk mixture into the bowl of a stand mixer and stir together.
Using a wooden spoon, stir in about 2 cups of flour and mix until a dough forms. Switch to the dough hook and turn the mixer on to low speed (2). Mix for about 8 minutes, adding flour a tablespoon at a time if dough seems especially sticky.
When the dough is smooth and elastic, form into a ball and place in a bowl covered with plastic wrap.
Let rise until doubled in size, about one hour.
Punch down, then let rise again for about an hour.
Preheat the oven to 400 F. Grease a 5 x 9 loaf pan.
After the dough has risen, flatten it into a rectangle about 9" by 9"
Spread the pesto evenly over the dough, then carefully roll it up.
Pinch together the seam and place the loaf seam-side down in the loaf pan
Bake for about 20 minutes, or until the bread is golden brown and sounds hollow when tapped.
Set on a wire rack to cool.