1/2 onion, diced
1 pinch salt
1/4 cup all-purpose flour
2 cups milk, or more to taste, divided
1 (4 ounce) package chive and onion-flavored goat cheese
1/2 teaspoon salt
1/4 teaspoon ground black pepper
Heat oil in a saucepan over medium heat; add onion and season with a pinch of salt. Cook and stir onion until translucent, about 5 minutes. Stir flour with the onion; cook, stirring continually, for 1 minute. Pour 1 cup milk into the saucepan while stirring; add goat cheese and stir to melt. Stir remaining milk into the mixture, 1/2 cup at a time, and cook until you reach your desired texture, 5 to 10 minutes more; season with 1/2 teaspoon salt and black pepper.