Are you making a ham this holiday? If so, make this mustard sauce, too. It is so delicious and so simple to prepare — it’s a matter of bringing a few ingredients to a boil and then passing the mixture through a strainer. It’s fantastic for leftover ham sandwiches.

Gramma's mustard sauce in a Weck jar.

You can watch the video above, but here’s the visual play-by-play: Gather your ingredients: cream, ground mustard, vinegar, salt, sugar, egg yolks.

Ingredients for mustard sauce.

Combine them in a sauce pan:

Ingredients for mustard sauce in a small saucepan.

Bring to a simmer over medium heat, whisking often. Do not walk away. As soon as it simmers, it’s done. Strain it.

Mustard sauce simmering stovetop.
Mustard sauce, strained through a sieve.

Store in the refrigerator for up to 1 week (or longer).

Gramma's mustard sauce in a Weck jar.

It is sooooo nice to have on hand for leftover ham sandwiches on …

sandwich ingredients

homemade biscuits.

leftover ham and arugula sandwich on cheddar biscuit with mustard sauce
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Gramma's mustard sauce in a Weck jar.

My Grandmother’s Mustard Sauce

  • Author: Alexandra Stafford
  • Prep Time: 5 minutes
  • Cook Time: 5 minutes
  • Total Time: 10 minutes
  • Yield: 1 .5 cups


In my family, this mustard sauce is as essential as the ham on the holiday table. It takes no time to whisk together, and it is so nice to have on hand for leftover ham sandwiches. 


  • 1/2 cup sugar
  • 1/4 cup white wine vinegar
  • 4 tablespoons dry mustard
  • 4 egg yolks
  • 1 teaspoon kosher salt
  • 1 cup heavy cream


  1. Place a strainer over a medium-sized bowl (able to hold about 2 cups of liquid). Combine all ingredients in a saucepan. Bring to a boil while monitoring closely and stirring often. As soon as the mixture comes to boil, pour it through the strainer into the bowl. Let cool, then cover with plastic wrap and place in the fridge.
  • Category: Condiment
  • Method: Stovetop
  • Cuisine: American

Keywords: mustard, sauce, ham, cream, vinegar, easy