Muddle cucumber slices in a cocktail shaker or mixing glass until fully crushed and juicy.

Add the lime juice, simple syrup, prickly pear purée, and vodka to the muddled mixture.

In a separate mixing glass, vigorously shake the egg white with the coil from your strainer until frothy.

Combine the frothy egg white with the cocktail ingredients in the shaker and shake again, ensuring a smooth, frothy texture.

Strain the mixture over ice into your serving glass.

Garnish with a small orchid or edible flower for a beautiful presentation.