Sauce – “Old wild west” secret sauce

Pizza sauce is, presumably, whatever tomato-based sauce you'd put on a pizza. Those tend to be essentially like smooth (not chunky), lightly seasoned spaghetti sauce. If by "plain tomato sauce" you mean a jar of tomato sauce for spaghetti, you're probably in good shape. If you mean a can of pure tomato sauce, with no other ingredients, you'll probably want to add some seasoning. Basil and oregano are good bets for herbs; garlic and onion are also common, and perhaps crushed red pepper if you want a little kick.

If you're looking for a real recipe, this isn't a recipe request site, but search engines will serve you well.

From your description it sounds like it could be a cucumber martini or a variation of one, which does use vodka.

Here's a recipe from Recipes 4 Living :

Ingredients

• 3 oz. Cucumber Vodka
• 1/4 oz. Lime Juice
• 2 slices Cucumber
• 3 pieces Mint
• 1/2 oz. Simple Syrup

Directions

Muddle mint and a cucumber slice in a cocktail shaker. Add other ingredients and ice. Shake and strain into a chilled martini glass, and garnish with a slice of cucumber and a fresh mint sprig.

You can use this as a starting point and tweak it to your liking or, alternatively, search for other cucumber martini recipes on the Internet. There are many available.