Instructions

• Step 1: Whisk the dry ingredients. In a mixing bowl, combine the dry mustard powder and sugar. Make sure they are well-blended.
• Step 2: Add the vinegar. Slowly add the white distilled vinegar to the dry mixture, whisking thoroughly to form a paste.
• Step 3: Incorporate the egg. Crack the large egg into the mixture and whisk until smooth.
• Step 4: Heat the mixture. Transfer the mustard mixture to your double boiler or saucepan and heat over medium heat while stirring continuously for about 10-15 minutes.
• Step 5: Cool and store. Once thickened, remove from heat, allow to cool, and pour into a clean jar or airtight container.
• Step 6: Let it rest. For best flavor, let the mustard sit for at least 24 hours before using.