01 -
In a big saucepan, warm up the butter over medium heat until melted.
02 -
Once the butter's melted, stir in the flour. Keep stirring for about a minute until it turns into a thick, smooth paste.
03 -
Pour the milk in slowly while whisking. Let it cook uncovered until it thickens up nicely.
04 -
Take the saucepan off the heat and mix in the grated cheddar and salt. Stir until the cheese melts completely and the sauce looks velvety.
05 -
It's best served warm. Pair it with pretzel bites or soft pretzels for a delicious snack.
06 -
Put any leftovers in an airtight container and keep refrigerated for up to seven days. Add a splash of milk when reheating to make it smooth again.