Place milk and grated beetroot in a saucepan over medium- high heat. Cook, stirring occasionally, until 50% -60% of milk has evaporated and beetroot is nearly cooked.
Add ghee and sugar. Continue to cook until 80% of milk has evaporated and beetroot is well cooked.
Stir in ground cardamom just before removing it from flame.
Cool to room temperature and place in the refrigerator.
To Make Whipped Yogurt Cream:
Place cream, sugar and vanilla extract in a bowl. Use an electric or hand held mixer to beat for 2-3 minutes or until it turns thick and glossy. Add yogurt and beat again for another minute or until combined. Refrigerate until ready to use.
To Assemble Trifle:
Divide chilled halwa among four glasses. Add layers of whipped yogurt and halwa. Top with nuts.
Notes
- You can substitute beetroot halwa with your favorite halwa in this recipe.