Brittany's Poppy Seed Dressing

I love this dressing! Brittany, I hope you don't mind that I'm sharing it before you, but I seriously always have this dressing in my fridge!

1/4 c sugar
1 c oil
1/3 c cider vinegar
1 T. chopped dried onions (I almost never have the dried ones so I use fresh ones sometimes)
1T poppy seeds (they're cheap in Grenada)
1 tsp dry mustard (I've used sandwich mustard for this before and it was fine)
1 tsp. salt

I hope you like it as much as I do!