This homemade hot mustard replicates the McDonald's dipping sauce by blending brown mustard, corn syrup, mustard powder, and cayenne pepper into a tangy, spiced condiment that's ready in minutes and tastes better after an overnight rest.
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In a small bowl combine all ingredients.
Stir until well blended.
Store in an airtight container for at least 4 hours before serving. It is best to allow this to rest overnight before serving.
Store in an airtight container in the refrigerator for up to 2-3 weeks; flavor improves after overnight rest.
Store in an airtight container in the refrigerator for up to 2-3 weeks. The flavor deepens after resting overnight.
Mustard powder adds depth and heat; omitting it will reduce the sharp mustard flavor, but you can increase brown mustard slightly as a substitute.
Resting allows the spices and flavors to fully meld and develop a more balanced, complex taste closer to the McDonald's original.
Golden syrup, honey, or agave nectar work as 1:1 replacements; honey may add slight floral notes.
The cayenne pepper provides mild heat; adjust to taste or omit for a non-spicy version.
