INGREDIENTS
2 cups
all purpose flour (or 1 cup white whole wheat and 1 cup all purpose)
1 1/2 tsp
baking powder
1/2 tsp
baking soda
1/2 tsp
kosher salt
6 tbsp
chilled unsalted butter (cut into cubes)
3/4 cup
to 1 buttermilk
2 lb
medium/large sized ripe tomatoes (cored and cut into 1/4 inch slices)
2 1/2 cups
grated sharp cheddar cheese
1/4 cup
finely grated parmesan cheese
1
scallion (trimmed and thinly sliced (white and light green parts only))
1/4 cup
mayonnaise (see note)
1/4 cup
plain Greek yogurt
2 tbsp
minced fresh dill (see note)
1 tbsp
apple cider vinegar
2 tsp
granulated sugar
3/4 tsp
kosher salt
1/2 tsp
ground black pepper
1 1/2 tbsp
cornmeal