Combine first 3 ingredients in heavy medium saucepan over medium heat and stir until espresso powder dissolves (mixture will be grainy). Increase heat to medium-high and bring to boil. Boil 5 minutes, stirring frequently. Add cream and stir until smooth. Cool 10 minutes; do not stir. Scoop frozen yogurt into bowls. Spoon sauce over. Sprinkle with almonds and serve.