diff --git a/header.php b/header.php
index 6547d1d10..087448833 100644
--- a/header.php
+++ b/header.php
@@ -15,6 +15,13 @@
 <link rel="profile" href="http://gmpg.org/xfn/11">
 <link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
 
+<?php
+// Need to call do_blocks() here to ensure any script/styles are enqueued in wp_head.
+global $storefront_block_mini_cart;
+// todo: could potentially implement better default attributes for the block.
+$storefront_block_mini_cart = function_exists( 'do_blocks' ) ? do_blocks( '<!-- wp:woocommerce/mini-cart /-->' ) : null;
+?>
+
 <?php wp_head(); ?>
 </head>
 
diff --git a/inc/class-storefront.php b/inc/class-storefront.php
index 31bd5a127..6202b2b92 100644
--- a/inc/class-storefront.php
+++ b/inc/class-storefront.php
@@ -247,6 +247,13 @@ public function setup() {
 					),
 				)
 			);
+
+			/**
+			 * Add support for block emplate parts.
+			 *
+			 * @return void
+			 */
+			add_theme_support( 'block-template-parts' );
 		}
 
 		/**
diff --git a/inc/woocommerce/storefront-woocommerce-template-functions.php b/inc/woocommerce/storefront-woocommerce-template-functions.php
index 8630aa2c6..74a879a5c 100644
--- a/inc/woocommerce/storefront-woocommerce-template-functions.php
+++ b/inc/woocommerce/storefront-woocommerce-template-functions.php
@@ -115,6 +115,16 @@ function storefront_product_search() {
 	}
 }
 
+/**
+ * Returns the output for the mini-cart block.
+ *
+ * @return string
+ */
+function storefront_get_block_mini_cart() {
+	global $storefront_block_mini_cart;
+	return $storefront_block_mini_cart ?? '';
+}
+
 if ( ! function_exists( 'storefront_header_cart' ) ) {
 	/**
 	 * Display Header Cart
@@ -124,6 +134,7 @@ function storefront_product_search() {
 	 * @return void
 	 */
 	function storefront_header_cart() {
+		$block_mini_cart = storefront_get_block_mini_cart();
 		if ( storefront_is_woocommerce_activated() ) {
 			if ( is_cart() ) {
 				$class = 'current-menu-item';
@@ -131,14 +142,21 @@ function storefront_header_cart() {
 				$class = '';
 			}
 			?>
-		<ul id="site-header-cart" class="site-header-cart menu">
-			<li class="<?php echo esc_attr( $class ); ?>">
-				<?php storefront_cart_link(); ?>
-			</li>
-			<li>
-				<?php the_widget( 'WC_Widget_Cart', 'title=' ); ?>
-			</li>
-		</ul>
+			<ul id="site-header-cart" class="site-header-cart menu">
+				<!-- <li class="<?php echo esc_attr( $class ); ?>">
+					<?php storefront_cart_link(); ?>
+				</li> -->
+				<li>
+					<?php
+					// todo - consider adding a mechansim for either opt-in/opt-out of using the mini-cart block.
+					// old cart
+					// the_widget( 'WC_Widget_Cart', 'title=' );
+					// new cart
+					// phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped -- Escaped by via do_blocks() in header.php.
+					echo $block_mini_cart;
+					?>
+				</li>
+			</ul>
 			<?php
 		}
 	}