The phrase
"quick whisk" means to mix or beat something rapidly using a tool called a whisk, which has a handle and several wire loops.
Full definition
Fold the wet ingredients into the flour mixture using a large wooden spoon or rubber spatula, then give the batter
a quick whisk to ensure everything is well mixed.
You can sift them if you prefer but
a quick whisk to blend does the trick.
Remove your mixture from the oven and give
it a quick whisk - if your batter seems thicker than the consistency of double cream then pour in a little of your reserved milk mix until the texture is right.
If the vinaigrette sits for a while it will separate but that is easily fixed by
another quick whisk.
Give the dry ingredients
a quick whisk and then set this mixture aside.
After
a quick whisk to combine, pop it in the refrigerator for four hours or overnight.
If the hollandaise sauce separates, give
it a quick whisk to re-mix.
Stir again if needed (sometimes you will see a bit of separation when almond milk heats but it should come together again after
a quick whisk).
Add your yogurt mix to your agave mix and give
it a quick whisk.
Give the sauce
a quick whisk, add the chopped dill, season to taste, then pour into a dipping bowl.