Asparagus With Creamy Mustard Onion Sauce

• 1 bunch asparagus, washed and ends trimmed (about 1 1/4 lbs)
• 1 tablespoon butter
• 1 tablespoon minced onion
• 1/4 - 1/2 teaspoon salt, to taste
• 1/4 teaspoon white pepper
• 1 1/2 teaspoons superfine ground mustard
• 1/3 cup light sour cream

1. Steam/boil asparagus until desired tenderness (usually 3-4 mintes); drain and place on serving platter.
2. Meanwhile, in a small saucepan, over med-low heat, melt butter. Add minced onion and saute for about 5-6 minutes, or until onions are translucent and tender; do not brown butter or burn onions.
3. Reduce heat to low; add salt, white pepper, and ground superfine mustard. Add light sour cream and stir well. Heat through, about 1-2 minutes. Pour sauce over hot, cooked asparagus and serve.

butter, onion, salt, white pepper, ground mustard, light sour cream

Taken from www.food.com/recipe/asparagus-with-creamy-mustard-onion-sauce-144921 (may not work)