1-Prep and mise en place: Gather and measure all ingredients before turning on the blender. If you use frozen fruit, let your blender blade warm slightly by running a short pulse with room-temperature liquid first if the motor is small. Use a tamper if your blender has one to move dense bits toward the blades.

2-First Step: Wash and prepare fruit and tools. Rinse strawberries if using fresh, remove stems, and quarter large berries so they blend evenly. Peel the banana and, if using a fresh banana, slice it into chunks for easier blending. Measure ground flaxseed, protein powder, vanilla extract, ice, and milk.

3-Second Step: Add liquid first, then powders, then fruit, then ice. Pour 3/4 cup low-fat milk or protein-rich dairy-free milk into the blender jar first. Add 1/4 cup vanilla protein powder and 2 tablespoons ground flaxseed on top of the liquid to prevent powders from clinging to the sides. Layer the fruit next: 1 medium ripe banana and 3/4 cup strawberries. Add 1/2 teaspoon vanilla extract if using and 1 teaspoon sweetener if you prefer added sweetness. Finish by adding 3/4 cup ice to the top. Adding ice last helps the blades pull everything into the vortex rather than pushing the ice out.

4-Third Step: Blend, pulse, and finish. Start the blender on low for 10-15 seconds to incorporate powders with the liquid. Increase to high for 30-60 seconds until the mixture looks smooth and homogenous. If your blender stalls, pause and use a tamper or add a splash more milk to free the blades. Scrape the sides with a silicone spatula if needed, then blend another 5-10 seconds to reincorporate.

5-Fourth Step: Taste and adjust. Taste a small spoonful. If it needs more sweetness, add a little maple syrup or honey, then blend briefly. If it is too thick, add 1-2 tablespoons of milk and blend until the desired consistency is reached. If it is too thin, add a few frozen berries, more ice, or a tablespoon of peanut butter or Greek yogurt to thicken.

6-Final Step: Serve and enjoy. Pour into a chilled glass or a portable shaker bottle if you are on the go. Garnish with a sliced strawberry or a sprinkle of ground flaxseed for a pretty finish. Ready time is about 5 minutes including blending.

7-Quick troubleshooting and variations while blending: * If the smoothie separates after sitting, shake or stir before drinking. Separation is normal with high-fiber additions like flaxseed.* For a colder, creamier texture without watering down, use frozen bananas and frozen strawberries and reduce ice to 1/4 cup.* To increase protein, add a scoop of Greek yogurt or an extra tablespoon of protein powder, but reduce milk slightly to keep thickness.