Pumpkin Spice Smoothie

Michael Eisenwasser

Print Recipe

A pumpkin spice smoothie using Monash serve sizes: 1/3 cup of canned pumpkin, a firm-yellow banana, pumpkin pie spice, and lactose-free or almond milk. It tastes like a pumpkin pie milkshake, with measured ingredients instead of coffee-shop syrup.

Prep 5 min

Cook 1 min

Serves 1

Gluten-freeVegan-option

Ingredients

• 1/3 cup (about 75 g) canned pumpkin puree, 100% pumpkin (not pumpkin pie filling)
• 1 firm-yellow banana (about 100 g), still slightly green at the stem
• 1 cup (250 ml) lactose-free cow's milk or unsweetened almond milk
• 1/2 to 3/4 teaspoon pumpkin pie spice (cinnamon, nutmeg, ginger, clove, allspice)
• 1 to 2 teaspoons pure maple syrup
• 1/2 cup ice
• 1/2 teaspoon pure vanilla extract (optional)
• Pinch of salt (optional, sharpens the spices)

Instructions

Blend

1. Add the milk first, then the pumpkin, banana, pumpkin pie spice, maple syrup, ice, vanilla, and salt.
2. Blend on high for 45 to 60 seconds, until the pumpkin is fully broken up and the drink looks a uniform warm orange with no streaks of spice floating on top.
3. Pour into a tall glass and drink right away. It thickens for a minute or two, then thins as the ice melts.

Tips & Substitutions

• Buy the right can. You want 100% pumpkin puree — the ingredient list should read "pumpkin" and nothing else. Libby's is the common one in the US. Skip "pumpkin pie filling" or "pumpkin pie mix" cans; those add high-fructose corn syrup, sometimes honey, and a spice blend with concentrated additives you haven't measured. The seasoning goes in separately so you can control the serve.
• Measure the pumpkin. Monash lists 1/3 cup (about 75 g) of canned pumpkin as the low serve. A full half cup tips into moderate territory, so level the scoop rather than heaping it. A 15 oz can gives you roughly 5 servings, so scoop what you need and refrigerate the rest in a sealed jar for up to 4 days.
• Pick the right banana. Firm-yellow, still slightly green at the stem, is the low serve at 1 whole banana (about 100 g). Once it's spotty-ripe, Monash drops the serve to about 1/3 of a banana (about 35 g). Freeze firm-yellow slices on a tray so you always have one ready.
• Pre-mixed pumpkin pie spice works. Most jarred blends are just cinnamon, nutmeg, ginger, clove, and allspice — all low-FODMAP at normal culinary amounts. If you're out, make your own: 1/2 teaspoon cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, 1/8 teaspoon clove, 1/8 teaspoon allspice per drink.
• Pick a low-FODMAP milk. Lactose-free cow, unsweetened almond (up to 1 cup / 250 ml), macadamia, hemp, or rice milk (up to 3/4 cup / 187 ml) all work. Canned light coconut milk is low at 1/2 cup. Oat milk is brand- and serve-dependent; use a Monash-certified carton or skip it. Avoid any milk with inulin, chicory root fiber, or added "prebiotic fiber."
• Skip the coffeeshop syrup. Bottled "pumpkin spice syrup" — Starbucks, Torani, Monin, grocery-store knockoffs — varies a lot by brand: high-fructose corn syrup in some, cane sugar in others, plus thickeners, natural flavors, and sometimes fenugreek or polyol sweeteners. Ingredient lists change by brand and region, there's no Monash-tested serve to go by, and the spice is diluted anyway. Real spice plus maple syrup gives you the same flavor with ingredients you can actually measure.
• Sweeten with maple syrup only. Monash lists pure maple syrup as low at 2 tablespoons, so 1 to 2 teaspoons is well under the limit. Honey and agave are high-fructose and don't belong here. Skip sugar-free "keto" sweeteners with polyols like xylitol, sorbitol, or erythritol blends.
• Make it a protein smoothie. Add 1 scoop of whey isolate, rice protein, or egg-white protein powder. A vanilla whey isolate works well here. Skip plant-protein blends like Orgain, Vega, and Garden of Life — many contain inulin or chicory root fiber, which is high-FODMAP.
• Freeze the banana. Peel a firm-yellow banana, slice it, and freeze on a tray. Frozen banana plus ice makes a thicker, colder smoothie that drinks like a pumpkin milkshake.

Why This Works

Canned pumpkin is low at 1/3 cup. Monash rates 1/3 cup (about 75 g) of canned pumpkin puree as the low serve. A half cup or more tips into moderate-FODMAP territory, mostly from fructans and mannitol. At 1/3 cup, you get the full pumpkin flavor and the thick, velvety texture that makes this drink taste like pie — without pushing past the serve. Worth noting: butternut and roasted winter squash have different serves, so stick to plain canned pumpkin here.

Banana ripeness matters more than size. Monash rates 1 whole unripe banana (about 100 g) as low, but once it's ripe and spotty the low serve drops sharply — around 1/3 of a banana in recent data. Ripeness changes the FODMAP profile, and the exact gram threshold can shift with Monash retesting, so treat it as a meaningful cut, not a precise scale. Firm-yellow, slightly green at the stem, is the target. If all your bananas have gone spotty, use a small portion and lean a little harder on the pumpkin and spice.

The spices are low-FODMAP in these amounts. Cinnamon, nutmeg, ginger, clove, and allspice are all low-FODMAP at normal culinary amounts — half to three-quarter teaspoon of a pre-mixed pumpkin pie spice is well under the limit. Most of the flavor in a pumpkin spice latte comes from these five spices, not the syrup. When you use them directly, you get the same taste without the high-fructose corn syrup and fenugreek that bottled syrups sometimes carry.

Milk choice. Lactose is the issue in regular cow's milk. Lactose-free dairy and most unsweetened nut milks are low at 1 cup, which is why this recipe pours a full glass without splitting the volume. Pumpkin and spice mask a thin milk less forgivingly than chocolate does, so pick one with some body — lactose-free whole milk or a creamy unsweetened almond both work well.

Sweetener rule. Pumpkin plus spice isn't sweet on its own — you need a little sugar to make it taste like pie. Pure maple syrup is low at 2 tablespoons, so 1 to 2 teaspoons is well under the limit, and the flavor matches pumpkin better than cane sugar. Honey and agave are high-fructose. Polyol "keto" sweeteners can trigger symptoms of their own.

Storage

Blend and drink right away. If you need to hold one, cap it in a sealed container and refrigerate for up to 24 hours at 40°F (4°C) or below. Shake or re-blend before drinking; pumpkin and spice both settle as they sit. Leftover canned pumpkin keeps in a sealed jar in the fridge for up to 4 days, or portion 1/3 cup scoops into an ice cube tray and freeze — drop a frozen cube straight into the blender for the next smoothie.

Not sure about an ingredient? FODMAP Tracker includes a database of 1,000+ foods with FODMAP ratings to help you cook with confidence.