Heat up the pan then Pan fry onion for few seconds then add whole grain mustard sauce mixture and olive oil mix well and off heat immediately

I used this mixture in few of the following recipes,,,,adding more honey for a sweet taste and or less honey for a stronger mustard taste

https://cookpad.wasmer.app/us/recipes/417437-spaghetti-in-whole-grain-mustard-sauce
https://cookpad.wasmer.app/us/recipes/358449-baked-mackeral-with-mustard-sauce