This is a moist, dense, not to mention DELICIOUS, bread with very good flavor. It is marbled and topped off with a peanutty chocolate crumb topping. The recipe comes from the book "Do Breakfast" by Jane Donovan.
Preheat oven to 350 degrees. Grease a 9- x 5-inch loaf pan.
Into a large bowl, sift the flour, baking powder and salt. Stir in the chocolate chips Make a well in the dry ingredients and set aside.
In another bowl, with the electric mixer beat the peanut butter, sugar, egg, milk, and vanilla. Pour these wet ingredients into the well and lightly stir with a fork until combined.
Combine the crumb topping ingredients in a small bowl. Reserve.
Spoon 1/2 of the batter into the prepared pan. Smooth the top, then sprinkle with 1/2 of the crumb mixture. Spoon over the remaining batter, smoothing it out, and sprinkle with the remaining crumb mixture. With a round bladed knife draw through mixture to marbelize lightly.
Bake 50-55 minutes. Tester should come out moist with no uncooked crumbs. Cool on a rack 25 minutes then turn out carefully, top side up. When completely cool, wrap in foil and keep a day before serving.