Blend leftover coffee with ice and you get a watery drink; the fix is strength and chill, not more ice. This coffee frappe recipe uses chilled strong coffee, milk, sugar and ice, blended until smooth and creamy.
For the brewing basics behind the strong base, see how to brew coffee at home. The sections below cover quantities, the blending method, instant coffee and ways to fix a thin drink.
Frappe ingredients and quantities that work
A single frappe needs strong coffee, a little milk, sweetener, flavouring and ice. Splenda Canada’s coffee frappe recipe uses ¾ cup chilled strong coffee, ¼ cup 1% milk, 3 tbsp sweetener, ½ tsp vanilla and 1 cup ice. It makes one 10-ounce drink in about 5 minutes. Coffee is the largest liquid and milk only softens it, so the drink tastes of coffee rather than of milk.
Sweetness is the easiest quantity to adjust. A home recipe from Savory Sweet Life starts with 3 tablespoons of sugar and says to use more or less depending on preference. Start there and adjust on the next batch rather than mid-blend.
Several assumptions about frappes lead people to a thin or flat result. The table sets them against what the recipes actually do.
| Common assumption | What the recipes show | Planning use |
|---|---|---|
| Leftover coffee is good enough | Splenda calls for ¾ cup strongly brewed, chilled coffee. Mozzo’s espresso version brews 18 g of ground coffee to 35–40 g of liquid espresso in 26–30 seconds. | Make the coffee strong and cold before it reaches the blender. |
| Ice is only there to chill | Splenda blends 1 cup of ice into the drink. Mozzo adds a handful of ice and blends all ingredients thoroughly. | Treat ice as a measured ingredient, not a garnish. |
| Only whole milk works | Splenda uses ¼ cup 1% milk and says fat-free milk gives the same results. Mozzo uses 100 ml of milk or a milk alternative. | Use the milk you have, and save cream for a richer version. |
Figures in the table come from Splenda Canada’s coffee frappe recipe and the barista-style frappe recipe from Mozzo.
Strong coffee: the base of the drink
Strong coffee is the base of the drink, and any of three routes will give you one: extra grounds, a double-strength brew or espresso shots. Make it ahead and chill it. Splenda specifies chilled coffee, and the Viva Veltoro frappe uses an 8-ounce cup of coffee cooled to room temperature or chilled.
Extra grounds for a brewed base
For extra-strong brewed coffee, Splenda suggests 4 to 6 tablespoons of coffee grounds per 1 cup of water. Strength comes from the dose, so a clean, even grind helps a drip or pour-over method stay balanced. The guide to Pour-Over Coffee Grind: How To Dial In The Perfect Texture For Cleaner, Balanced Cups (2026 Guide) – Greatnorthernbrewing covers that side of the brew.
Espresso shots or double-strength coffee
If you have an espresso machine, use shots. Savory Sweet Life’s frappuccino-style recipe accepts either 2 one-ounce shots of espresso or ¾ cup of double-strength coffee. It also offers a variation: mix the ¾ cup of double-strength coffee with ½ cup of milk and add ¼ cup more crushed ice. The 1½ cups of crushed ice in the base version gives you the ice quantity to scale from.
Blending a frappe, step by step
Blending is quick: the Savory Sweet Life recipe lists 1 minute of prep and 3 minutes in total for one serving. Work in this order so the texture stays even.
- Chill the coffee first. Use strongly brewed coffee that has gone fully cold, as in the Splenda method.
- Load the blender. Add the coffee, milk, sweetener and vanilla, then the ice on top, using the quantities in the first section.
- Blend and scrape. Splenda says to process the mixture until smooth, stopping occasionally to scrape down the sides of the blender. Savory Sweet Life blends everything except the whipped cream for 30–45 seconds.
- Judge the thickness. The Viva Veltoro recipe says to add a little more milk if the frappe is too thick. If it is too thin, add ice cream. That recipe blends until smooth and creamy.
- Top and serve at once. Add whipped cream last, since it is the one ingredient the Savory Sweet Life recipe keeps out of the blender.
Keeping a frappe from turning watery
A watery frappe usually has one of three causes: a weak base, too little ice or uneven blending. Check them in that order.
- Weak coffee. If the drink tastes thin, the base is the first suspect. The Splenda ratio of 4 to 6 tablespoons of grounds per 1 cup of water is the benchmark for strong coffee.
- Too little ice. Splenda suggests adding a few more ice cubes to increase the froth. The Savory Sweet Life variation that mixes coffee with milk adds ¼ cup more crushed ice.
- Patchy blending. Splenda’s instruction to scrape down the sides of the blender stops unblended liquid pooling around the blades.
- Needs body. Viva Veltoro adds 3 scoops of vanilla ice cream to 1 cup of coffee and ½ cup of milk, and says more ice cream thickens a thin drink. That version also adds 3 tablespoons of chocolate sauce.
Instant coffee and the shaken Greek frappe
Yes, you can use instant coffee, and a shaker or jar is enough instead of a blender. The Greek-style frappe from Wow It’s Veggie mixes 2 teaspoons of instant coffee with 1–2 teaspoons of granulated sugar and 2 tablespoons of water. You shake it vigorously with ice for 30 seconds until a thick foam forms. Fill the rest of the glass 1/3 with creamer and 2/3 with milk over ice.
The recipe says any brand of instant coffee works, so there is no need to buy a premium jar. Choose this method when you have no blender or want a drink in 30 seconds. Choose the blended version when you want a thicker, milkshake-like texture.
Richer and lighter variations
Richness comes from the dairy. Savory Sweet Life suggests half and half, or heavy cream, for a portion of the milk. That keeps the coffee flavour but makes the drink fuller. For a lighter drink, Splenda’s 1% milk or fat-free milk keeps the recipe simple.
For a drink that is more of a meal, the Coffee Smoothie Recipe: Energizing Morning Blend (Easy 10‑Minute Recipe) – Greatnorthernbrewing takes the same idea further.
Frequently asked questions
| Question | Answer |
|---|---|
| How long does a coffee frappe take to make? | Savory Sweet Life lists a total of 3 mins for one serving, and Splenda says 5 min. The shaken Greek version takes about 30 seconds to make. |
| Can I use a milk alternative? | Yes. Mozzo’s recipe starts with 100 ml of milk or a milk alternative of your choice. |
| Does decaf instant coffee work? | It works, but the foam is smaller than with regular coffee. The Wow It’s Veggie recipe says the ice still helps to froth it up. |
| Can cold-brew concentrate replace strong coffee? | Yes. Splenda says cold-brewed coffee concentrate can be substituted for the strong brewed coffee. |
