Ingredients

• 4 (1/4-ounce) envelopes unflavored gelatin
• 1 cup water
• 2 cups sugar plus additional for tossing
• 1 teaspoon fresh lemon juice
• 3/4 cup thawed unsweetened passion-fruit (maracuyá) purée such as Goya
• Equipment: an 8-inch square nonstick baking pan

Instructions

1. Lightly oil baking pan.
2. Sprinkle gelatin over water in a 2-quart heavy saucepan and let stand 4 minutes to soften. Heat gelatin over medium-low heat, stirring, until dissolved. Stir in 2 cups sugar until dissolved, then stir in lemon juice.
3. Bring to a boil over medium-high heat, washing any sugar crystals down side of pan with a pastry brush dipped in cold water. Reduce heat to medium-low and boil, uncovered, without stirring, 13 minutes (watch carefully so that mixture does not boil over). Remove from heat and let stand 5 minutes for bubbles to dissipate. (Skim any foam that remains after 5 minutes.) Stir in passion-fruit purée (do not scrape bottom of pan; leave any dark bits that stick). Pour into baking pan and let stand at room temperature until set, at least 12 hours.
4. Run a sharp knife around edge of gelatin and invert onto a cutting board. Cut into 1/2-inch-wide strips, then cut strips into 1-inch pieces. Just before serving, gently toss gelées in a bowl of sugar to coat, brushing off excess.