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Vegan Strawberry-Rhubarb Oat Squares

104

  • Prep Time15 min
  • Total Time1 h 30 min
  • Makes16 squares
*PLUS cooling time
A tin of Vegan Strawberry-Rhubarb Oat Squares, for an article about 18 of the best dessert squares

(Photography: Erik Putz; Food styling: Eshun Mott; Prop styling: Emily Howes; Art direction: Aimee Nishitoba)

Chatelaine Triple Tested

With an irresistible oat crust and fruity, vibrant centre—these bars are a sure sign of summer.

Crust

  • 1 1/4 cups all-purpose flour, (150 g)

  • 1 1/4 cups large-flake oats, (125 g)

  • 2/3 cup granulated sugar, (128 g)

  • 1/4 tsp salt

  • 1/2 cup refined coconut oil, melted

Filling

  • 1/3 cup strawberry jam

  • 3 tbsp cornstarch

  • 1 tsp vanilla

  • 300 g frozen sliced rhubarb, about 2 cups

  • 300 g frozen sliced strawberries, about 2 cups

Instructions

  • Position rack in centre of oven and preheat to 350F. Line the bottom of a 9-in. baking pan with parchment, leaving overhang on all sides.

  • Crust: Stir flour with oats, sugar and salt in a large bowl. Drizzle with melted coconut oil. Stir until combined. Set aside ½ cup oat mixture.

  • Sprinkle remaining oat mixture evenly in prepared pan, then firmly press down.

  • Filling: Stir jam with cornstarch and vanilla in a large bowl until combined. Add frozen fruits and stir until coated. Arrange over oat mixture in pan as evenly as possible. Sprinkle reserved oat mixture overtop.

  • Bake until fruit is bubbly around edges, 60 to 75 min. Transfer pan to a rack and cool completely, about 2 hrs. Cut into squares and serve.

Nutrition (per serving)

Calories 190, Protein 2g, Carbohydrates 29g, Fat 7g, Fibre 2g, Sodium 40mg.

Find more of our favourite dessert square recipes.

Get more of our best rhubarb recipes.

Get more of our best strawberry recipes.

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The cover of Chatelaine's Spring 2026 issue.

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A Bright Spot: Our Spring 2026 issue features 12 colourful DIY decor hacks from guest editor Alexandra Gater. Plus, recipes for protein-packed breakfasts, cheese soufflé and a dreamy rhubarb cake.