Sweet Potato Gratin

INGREDIENTS

2 lb

sweet potatoes, (thinly sliced)

2 tbsp

all purpose flour

salt and fresh ground pepper, (to taste (I add about 1 teaspoon of salt and 1/2 teaspoon black pepper))

1/4 tsp

ground ginger

1/4 tsp

ground nutmeg

1/4 tsp

chili powder OR ground red pepper

1 tsp

dried thyme

1 can

evaporated milk

1/4 cup

grated parmesan cheese

1/2 cup

grated swiss cheese or gruyere cheese

grated parmesan cheese for garnish ((optional))

dried parsley for garnish ((optional))