4
Assemble the Potatoes
After cooling, cut potatoes halfway lengthwise, making sure not to cut all the way through. Scoop out flesh from potatoes, leaving skins intact (like a boat), and transfer potato flesh to the reserved bowl with broccoli. Evenly top potato skins with 1 tsp. olive oil and a pinch of salt. Gently massage oil and seasoning into potato skins and place on prepared baking sheet. Add 1 tsp. garlic salt, 1 tsp. garlic pepper, the remaining 1 oz. softened butter, half of the 2 oz. shredded cheddar cheese (reserve remaining for topping) to the bowl with potato and broccoli. Mash until smooth. Fill potato skins with potato-broccoli-cheese filling, then evenly top with the remaining cheddar cheese.