Chipotle-Bacon Mac and Cheese

INGREDIENTS

3 tsp

sea salt, divided

1 16 ounce package

cavatappi pasta

2 tbsp

corn oil, divided

1/2 cup

butter

small onion, diced

3 tbsp

all-purpose flour

3 cups

half-and-half

2 cups

heavy cream

1 tsp

ground white pepper

3 cups

freshly grated smoked Cheddar cheese

1 cup

freshly grated Cheddar cheese

1 tsp

ground chipotle chile pepper

cooked bacon slices, chopped

3/4 cup

panko (Japanese breadcrumbs)