Homemade old-fashioned grainy mustard

Ingredients

• 1/4 cup yellow mustard seeds
• 1/4 cup black mustard seeds (black are strongest and therefore only use yellow if you don’t like it to spicy)
• 1 tbsp dry mustard powder
• 1 tbsp onion powder or 2 tbsp fresh onion ground to a paste
• 1/2 tbsp garlic powder
• 3/4 cup of flat pale beer such as a pilsener or lager. For a more robust flavour use an amber or dark ale. Dry white wine may be used as well.
• 1/2 cup cider or white wine vinegar. Malt vinegar will add an extra depth of flavour.
• 1 1/2 tsp salt
• 2 – 3 tsp or your favourite dried herb, powdered. Only use one herb such as thyme, tarragon or rosemary. (I suggest adding it slowly until you obtain the desired flavour)