Sugar and acid hide each other. A drink that tastes too sour is very often a drink that is short on sugar, and a guest who says "too sweet" is frequently asking for more lime. This week, prove it on yourself. **The challenge** 1. Build a sour you know well — Daiquiri, Margarita, Whiskey Sour — three times. 2. Change ONLY the sugar: your usual amount, a third less, a third more. Spirit and citrus identical in all three. Identical. 3. Shuffle them so you don't know which is which, then rank them from most sour to least sour. **What to look for:** whether the one you called most sour is actually the one with the least sugar — because the citrus never changed. If it is, you just measured sugar masking acid, on your own palate. **Post in the comments:** your ranking, and whether you got it right. That's it. A single line is a complete answer. This one humbles almost everybody, including people who have been behind a bar for years. I'll reply to every one. The full protocol lives in THE PALATE in the classroom, which opens at Level 4 — but you don't need it to run this today. Everything you need is on the card.

The oldest cocktail there is. It's literally what the word used to mean. 1️⃣ 50ml Bourbon or rye 2️⃣ 1 sugar cube 3️⃣ 3 dashes Angostura 👉 Stir, never shake — cold, not aerated. 👉 One big cube. Small ice is a leak. 👉 Express the orange peel over the surface, then drop it in. Negroni taught you equal parts. Daiquiri taught you the sour. This one teaches you the oldest structure of all: spirit, sugar, bitters, water. Swap the spirit and you've got a whole family. Three drinks, one idea. Muddled fruit in an Old Fashioned — crime or comfort? 🍊