Brown mustard is a type of mustard sauce or condiment that is typically dark in color and has a stronger, spicier taste compared to yellow mustard. Full definition
We topped them with spicy brown mustard, red onion, cherry tomatoes and avocado and served on lettuce. (marthastewart.com)
If you don't have an Asian grocery where you live where you can purchase inexpensive mustard seeds you can purchase brown mustard seeds on - line. (canned-time.com)
4 - ingredient sauce is made up of brown mustard, honey, black pepper, and red pepper flakes. (platingpixels.com)