Buttermilk gives this cheesy quick bread a subtle tang and keeps it nice and moist. Serve with plenty of butter. Martha made this recipe on "Martha Bakes" episode 713.
Preheat the oven to 350 degrees. Butter and flour a 4 1/2-by-8 1/2-inch loaf pan; set aside.
Whisk together flour, baking powder, salt, baking soda, and 6 ounces cheese; set aside. In a separate bowl, whisk together butter, eggs, and buttermilk until thoroughly combined. Add to flour mixture and stir to combine. Transfer to prepared pan; spread evenly with an offset spatula. Sprinkle over remaining 1 ounce cheese. Bake until a skewer inserted in the center comes out with moist crumbs attached, 50 to 55 minutes. Transfer pan to a wire rack to cool for 5 minutes. Remove bread from pan and let cool completely on wire rack.